Answer:
Each additional hour increases the cost by $6.
The cost of parking for 1 hour is $8. The cost of parking for 2 hours is $14, which is $6 more than the cost of parking for 1 hour. The cost of parking for 3 hours is $20, which is $6 more than the cost of parking for 2 hours. This pattern continues for each additional hour.
Explanation: